composer

A package-based dependency manager for PHP projects. More information: https://getcomposer.org/.

• Interactively create a composer.json file:
  composer init
• Add a package as a dependency for this project, adding it to composer.json:
  composer require {{user/package}}
• Install all the dependencies in this project's composer.json and create composer.lock:
  composer install
• Uninstall a package from this project, removing it as a dependency from composer.json:
  composer remove {{user/package}}
• Update all the dependencies in this project's composer.json and note versions in composer.lock file:
  composer update
• Update composer lock only after updating composer.json manually:
  composer update --lock
• Learn more about why a dependency can't be installed:
  composer why-not {{user/package}}
• Update composer to its latest version:
  composer self-update